Final answer:
There are 2,598,960 combinations of 5 rowers possible in the rowing tournament.
Step-by-step explanation:
The number of combinations of 5 rowers possible can be calculated using the formula for combinations. The formula for combinations is nCr = n! / (r!(n-r)!), where n is the total number of rowers and r is the number of rowers competing at a time.
In this case, there are 52 rowers and 5 rowers competing at a time. So the number of combinations is 52! / (5!(52-5)!), which simplifies to 2598960. Therefore, there are 2,598,960 combinations of 5 rowers possible.